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تغییر شکل پلاستیک ورق‌های چندلایه فلزی هم‌جنس و غیر هم‌جنس با چگالی سطحی ثابت تحت بارگذاری دفعی مکرر | ||
| مکانیک هوافضا | ||
| مقاله 9، دوره 18، شماره 1 - شماره پیاپی 67، خرداد 1401، صفحه 137-159 اصل مقاله (2.63 M) | ||
| نوع مقاله: مکانیک ضربه | ||
| نویسندگان | ||
| مجتبی ضیاء شمامی1؛ هاشم بابایی* 2؛ توحید میرزابابای مستوفی3؛ حسین خدارحمی4 | ||
| 1پژوهشگر، دانشکده فنی مهندسی، دانشگاه جامع امام حسین(ع)، تهران، ایران | ||
| 2نویسنده مسئول: دانشیار، دانشکده مهندسی مکانیک، دانشگاه گیلان، گیلان، ایران | ||
| 3استادیار، دانشکده مهندسی مکانیک، دانشگاه ایوان‌کی، ایوان‌کی، ایران | ||
| 4استاد، دانشکده مهندسی مکانیک، دانشگاه ایوان‌کی، ایوان‌کی، ایران | ||
| تاریخ دریافت: 26 مرداد 1400، تاریخ بازنگری: 18 مهر 1400، تاریخ پذیرش: 24 مهر 1400 | ||
| چکیده | ||
| در پژوهش حاضر، مکانیسم تغییر شکل بزرگ پلاستیک ورق‌های دایره‌ای تک و چندلایه فلزی هم‌جنس و غیر هم‌جنس با چگالی سطحی ثابت تحت بارگذاری دفعی مکرر یکنواخت موردبررسی قرارگرفته است. از سامانه پاندول بالستیک به همراه لوله استقرار خرج 200 میلی‌متری برای اعمال بار انفجاری به نمونه استفاده شد. 40 نمونه آزمایشی در سه لایه‌بندی مختلف تک، دو و سه لایه با هشت چیدمان مختلف در نظر شد. برای ایجاد شرایط بارگذاری و آزمایشی یکسان، از 10 گرم ماده منفجره پلاستیکی استفاده شد و پاسخ دینامیکی هر سازه تا 5 بار بارگذاری مکرر موردمطالعه قرار گرفت. نتایج آزمایشگاهی حاکی از تغییر شکل بزرگ پلاستیک همراه با نازک شدگی در مرزهای گیردار و همچنین پاره شدن برخی آزمایش‌ها است. همچنین نتایج نشان داد که با افزایش تعداد دفعات انفجار، بیشترین خیز دائمی ورق‌ها افزایش می‌یابد و با افزایش تعداد انفجارها، خیز پیش‌رونده ورق در مرکز آن به‌صورت نمایی کاهش می‌یابد. علاوه بر این، قرارگیری یک لایه ضخیم در جلو و پشتیبانی یک سازه با لایه نازک‌تر عملکرد بهتری به نمونه آزمایشی در برابر بار انفجاری مکرر می‌بخشد. نتیجه به‌دست‌آمده برای ساختارهای چندلایه هم‌جنس کاملاً مطابق با نتایج ساختارهای غیر هم‌جنس است. | ||
| کلیدواژه‌ها | ||
| بارگذاری مکرر؛ بارگذاری دفعی؛ ساختار چندلایه غیر هم‌جنس؛ ورق دایره‌ای؛ خیز حداکثر | ||
| عنوان مقاله [English] | ||
| Plastic Deformation of Similar and Dissimilar Multi-layered Metallic Plates with the Same Areal Density Subjected to Repeated Impulsive Loading | ||
| نویسندگان [English] | ||
| Mojtaba Ziya-Shamami1؛ Hashem Babaei2؛ Tohid Mirzababaie Mostofi3؛ Hossein Khodarahmi4 | ||
| 1Researcher, Faculty of Technical Engineering, Imam Hossein University, Tehran, Iran | ||
| 2Corresponding author: Associate Professor, Faculty of Mechanical Engineering, Gilan University, Gilan, Iran | ||
| 3Assistant Professor, Faculty of Mechanical Engineering, Ivankay University, Ivankay, Iran | ||
| 4Professor, Faculty of Mechanical Engineering, Ivankay University, Ivankay, Iran | ||
| چکیده [English] | ||
| In the current research study, the large plastic deformations of similar and dissimilar single- and multi-layered metallic plates with the same areal density under repeated uniform impulsive loading have been investigated. The ballistic pendulum along a 200 mm length standoff blast tube was used to apply the blast load on the specimen. Forty testing specimen in three different layering configurations including single-, double, and triple-layered, and eight different arrangements were considered. For the same loading and experimental condition, 10 g plastic explosive was utilized and the dynamic response of structures was studied up to five consecutive loads. The experimental results indicated large plastic global deformation with thinning happening at the clamped boundary and also tearing for some experiments. The results also represented that the maximum permanent deflections of plates were increased by the number of blast loads and the progressive deflection of the plates at the center was decreased exponentially with increasing the number of blasts. Placing a thick front layer a thin back layer gives better blast performance to the tested specimen against repeated impulsive loading. The obtained result for multi-layered configurations with the same material is completely consistent with those structures made of dissimilar layers. | ||
| کلیدواژه‌ها [English] | ||
| Repeated loading, Impulsive loading, Multi-layered mixed configuration, Circular plate, Maximum displacement | ||
| مراجع | ||
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[1] Li Q, Jones N. On dimensionless numbers for dynamic plastic response of structural members. Archive of Applied Mechanics. 2000;70(4):245-54.## [2] Mostofi TM, Babaei H, Alitavoli M. Theoretical analysis on the effect of uniform and localized impulsive loading on the dynamic plastic behaviour of fully clamped thin quadrangular plates. Thin-Walled Structures. 2016;109:367-76.## [3] Mostofi TM, Sayah-Badkhor M, Rezasefat M, Ozbakkaloglu T, Babaei H. Gas mixture detonation load on polyurea-coated aluminum plates. Thin-Walled Structures. 2020;155:106851.## [4] Jones N. Dynamic inelastic response of strain rate sensitive ductile plates due to large impact, dynamic pressure and explosive loadings. International Journal of Impact Engineering. 2014;74:3-15.## [5] Ziya-Shamami M, Babaei H, Mostofi TM, Khodarahmi H. Structural response of monolithic and multi-layered circular metallic plates under repeated uniformly distributed impulsive loading: An experimental study. Thin-Walled Structures. 2020;157:107024.## [6] Rezasefat M, Mirzababaie Mostofi T, Babaei H, Ziya-Shamami M, Alitavoli M. Dynamic plastic response of double-layered circular metallic plates due to localized impulsive loading. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. 2019;233(7):1449-71.## [7] Rezasefat M, Mostofi TM, Ozbakkaloglu T. Repeated localized impulsive loading on monolithic and multi-layered metallic plates. Thin-Walled Structures. 2019;144:106332.## [8] Mehreganian N, Louca L, Langdon G, Curry R, Abdul-Karim N. The response of mild steel and armour steel plates to localised air-blast loading-comparison of numerical modelling techniques. International Journal of Impact Engineering. 2018;115:81-93.## [9] Mostofi TM, Babaei H, Alitavoli M, Lu G, Ruan D. Large transverse deformation of double-layered rectangular plates subjected to gas mixture detonation load. International Journal of Impact Engineering. 2019;125:93-106.## [10] Zhou Y, Ji C, Long Y, Yu Y, Li Y, Wang T. Experimental studies on the deformation and damage of steel cylindrical shells subjected to double-explosion loadings. Thin-Walled Structures. 2018;127:469-82.## [11] Henchie TF, Yuen SCK, Nurick G, Ranwaha N, Balden V. The response of circular plates to repeated uniform blast loads: An experimental and numerical study. International Journal of Impact Engineering. 2014;74:36-45.## [12] Truong DD, Jung H-J, Shin HK, Cho S-R. Response of low-temperature steel beams subjected to single and repeated lateral impacts. International Journal of Naval Architecture and Ocean Engineering. 2018;10(6):670-82.## [13] Zhu L, Shi S, Jones N. Dynamic response of stiffened plates under repeated impacts. International Journal of Impact Engineering. 2018;117:113-22.## [14] Zhu L, Guo K, Li Y, Yu T, Zhou Q. Experimental study on the dynamic behaviour of aluminium foam sandwich plates under single and repeated impacts at low temperature. International Journal of Impact Engineering. 2018;114:123-32.## [15] Guo K, Zhu L, Li Y, Yu T, Shenoi A, Zhou Q. Experimental investigation on the dynamic behaviour of aluminum foam sandwich plate under repeated impacts. Composite Structures. 2018;200:298-305.## [16] Rajendran R, Lee J. Blast loaded plates. Marine Structures. 2009;22(2):99-127.## [17] Rudrapatna N, Vaziri R, Olson M. Deformation and failure of blast-loaded square plates. International Journal of Impact Engineering. 1999;22(4):449-67.## [18] Cullis IG, Schofield J, Whitby A. Assessment of blast loading effects–Types of explosion and loading effects. International Journal of Pressure Vessels and Piping. 2010;87(9):493-503.## [19] Soutis C, Mohamed G, Hodzic A. Modelling the structural response of GLARE panels to blast load. Composite Structures. 2011;94(1):267-76.## [20] Teeling-Smith R, Nurick G. The deformation and tearing of thin circular plates subjected to impulsive loads. International Journal of Impact Engineering. 1991;11(1):77-91.## [21] Mostofi TM, Golbaf A, Mahmoudi A, Alitavoli M, Babaei H. Closed-form analytical analysis on the effect of coupled membrane and bending strains on the dynamic plastic behaviour of fully clamped thin quadrangular plates due to uniform and localized impulsive loading. Thin-Walled Structures. 2018;123:48-56.## [22] Mostofi TM, Babaei H, Alitavoli M. The influence of gas mixture detonation loads on large plastic deformation of thin quadrangular plates: Experimental investigation and empirical modelling. Thin-Walled Structures. 2017;118:1-11.## [23] Babaei H, Mirzababaie Mostofi T, Armoudli E. On dimensionless numbers for the dynamic plastic response of quadrangular mild steel plates subjected to localized and uniform impulsive loading. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering. 2017;231(5):939-50.## [24] Babaei H, Mirzababaie Mostofi T. New dimensionless numbers for deformation of circular mild steel plates with large strains as a result of localized and uniform impulsive loading. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. 2020;234(2):231-45.## [25] Babaei H, Mostofi TM, Alitavoli M, Darvizeh A. Empirical modelling for prediction of large deformation of clamped circular plates in gas detonation forming process. Experimental Techniques. 2016;40(6):1485-94.## [26] Babaei H, Mostofi TM, Alitavoli M. Study on the response of circular thin plate under low velocity impact. Geomechanics and Engineering. 2015;9(2):207-18.## [27] Mostofi TM, Babaei H, Alitavoli M, Hosseinzadeh S. On dimensionless numbers for predicting large ductile transverse deformation of monolithic and multi-layered metallic square targets struck normally by rigid spherical projectile. Thin-Walled Structures. 2017;112:118-24.## [28] Babaei H, Mostofi TM, Namdari-Khalilabad M, Alitavoli M, Mohammadi K. Gas mixture detonation method, a novel processing technique for metal powder compaction: Experimental investigation and empirical modeling. Powder Technology. 2017;315:171-81.## [29] Jamali A, Babaei H, Nariman-Zadeh N, Ashraf Talesh S, Mirzababaie Mostofi T. Multi-objective optimum design of ANFIS for modelling and prediction of deformation of thin plates subjected to hydrodynamic impact loading. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. 2020;234(3):368-78.## [30] Babaei H, Mostofi TM, Alitavoli M, Namazi N, Rahmanpoor A. Dynamic compaction of cold die Aluminum powders. Geomechanics and Engineering. 2016;10:109-24.## | ||
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آمار تعداد مشاهده مقاله: 595 تعداد دریافت فایل اصل مقاله: 528 |
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